Mhlana amalanga ama-3 kuMrhayili 2023, i-EPA yaveza umthetho ophakanyisiweko ku-Federal Register ukukhandela ukusetjenziswa kwe-methylene chloride.
Imvumo ye-EPA yomthetho ophakanyisiweko inikelwa ngaphasi komThetho wokulawula izinto ezinobuthi (i-TSCA), begodu i-dichloromethane yikhemikhali yesibili ubungozi bayo obulawulwa ngaphasi kwekambiso yokutjhugulula eyakhiwe ngu-Frank R. Lautenberg. UmThetho wokuPhepha kwamaKhemikhali wekhulu lama-21 ka-2016, kulandela isinyathelo se-ejensi sokuvikela abantu ekuvezweni kwe-asbestos ngonyaka odlulileko.
I-dichloromethane isetjenziswa ngeendlela ezihlukahlukeneko, kufaka hlangana ukusetjenziswa kwabathengi okufana nama-aerosol degreasers kanye nama-brush cleaner wamapende nama-coating, ukusetjenziswa kwezokuthengisa okufana nama-adhesives nama-sealants, kanye nokusetjenziswa kwebubulo ekukhiqizeni amanye amakhemikhali. Ukwenza isibonelo, i-dichloromethane isetjenziswa njengekhemikhali ephakathi ekukhiqizeni ama-hydrofluorocarbons (ama-HFC)32, asetjenziswa emafrijini ahlanganisiweko ukuthatha indawo yezinto ezinekghono eliphezulu lokufuthumala kwephasi.
Okungenani abantu abangama-85 bahlongakele ngebanga lokuvezwa kwe-methylene chloride kusukela ngo-1980, inengi labo bebasebenzi bekontraga yokuthuthukisa amakhaya ebebabandulwe ngokuzeleko begodu bahlome ngemitjhini yokuzivikela, ngokuya kwe-Environmental Protection Agency.
Ukuhlolwa kwengozi okungakaqinisekiswa kwe-ejensi kwe-dikloromethane bekubangelwa ziingozi ezihlobene nabasebenzi, abasebenzisi abasebenzako (abasebenzi abaseduze kodwana abangakavezwa ngqo kumakhemikhali), abathengi, nalabo abaseduze nendawo umthengi asebenzisa kiyo. I-Ejensi yokuVikelwa kweBhoduluko ikhombe ubungozi bemiphumela emimbi yepilo yabantu, okufaka hlangana ukulimala kwemizwa, imiphumela yesibindi nomdlavuza ngokuphefumula, nokuvezwa kwesikhumba ku-methylene chloride.
Imithetho ehlongozwako yokulawulwa kwengozi izokwehlisa msinyana ukukhiqizwa, ukucubungula nokusabalaliswa kwe-methylene chloride kibo boke abathengi kanye nokusetjenziswa okunengi kwezebubulo nezokurhweba, okunengi kwakho kuzokusetjenziswa ngokuzeleko kungakapheli iinyanga ezili-15. Ekusetjenzisweni okunengi kwe-methylene chloride i-EPA ehlongoza ukuyivala, ukuhlaziywa kwayo kutjengise bona iindleko nokusebenza kwemikhiqizo ye-methylene chloride ziyatholakala ngokuvamileko.
"Isayensi ngemuva kwe-methylene chloride icacile begodu ukuvezwa kungabanga imiphumela emimbi yezamaphilo ngitjho nokuhlongakala, okuyinto ekhona emindenini eminengi khulu elahlekelwe babantu abayithandako ngebanga lokutjhejwa," kutjho uMphathi we-EPA u-Michael S. Regan. emtlolweni weendaba we-ejensi. "Kungakho i-EPA ithatha amagadango ngokuphakamisa ukuvikela ipilo yabasebenzi ngokwethula imithetho eqinileko emsebenzini engavimbela ukusetjenziswa okunengi kwalekhemikhali begodu yehlise ukuvezwa kwawo woke amanye. Ukuthintana. Ukuvinjelwa okuphakanyisiweko okungumlando kutjengisa ituthuko ekulu esiyenzileko ekusebenziseni iindlela ezitjha zokuvikela amakhemikhali nokwamukelwa kwesikhathi eside kwamagadango wokuvikela ngcono ipilo yomphakathi."
"Ekukhiqizeni amabubulo, ukucubungula amabubulo, nokusetjenziswa kwe-federal i-EPA engazange iphakamise ukuvimbela, i-EPA inikela ngehlelo lokuvikela amakhemikhali emsebenzini elinemikhawulo eqinileko yokuvezwa ukuvikela ngcono abasebenzi," kwatjho isitatimende. “I-EPA ithole imibono yebubulo etjengisa bona ezinye iinsetjenziswa zingahle zithobele imikhawulo eqinileko yokuvezwa kwe-methylene chloride. Iimfuneko eziphakanyisiweko zizokuvumela ukuragela phambili nokusetjenziswa kwe-methylene chloride ukukhiqiza amakhemikhali aqakathekileko ekwehliseni imizamo yokutjhuguluka kobujamo bezulu okuvezwe kumbiko we-US Innovation and Manufacturing. namanye amakhemikhali adlala indima eqakathekileko ekulwisaneni nokutjhuguluka kobujamo bezulu, begodu umthetho ohlongozwako we-EPA usekela imizamo eragela phambili yokwehlisa ukukhutjhwa.”
Ukungezelela, i-EPA iphakamisa bona ukusetjenziswa okuthileko kwe-dichloromethane okufunwa yi-NASA, i-DOD kanye ne-FAA kuragela phambili nokulawulwa khulu emsebenzini, njengoba ukuvezwa kungehliswa ngokwaneleko ebujameni obubudisi khulu ukunciphisa ubungozi ebasebenzini ngendlela ekungakghoneka ngayo.
"Ukuvinjelwa okuphakanyisiweko nokuvinjelwa kuzokuvikela umphakathi ekuvezweni kwe-methylene chloride," kutjho isitatimende. "I-Ejensi yokuVikelwa kweBhoduluko, ngokusebenzisa idatha yokuvezwa kwetjhefu yeminyaka eyisithupha, ikhombe inani elincani leensetjenziswa njengengozi engaba yingozi emiphakathini ebiyelweko. Ukuvinjelwa komthetho ophakanyisiweko we-EPA kuzokufaka hlangana ukusetjenziswa okuragela phambili kwe-methylene chloride eensetjenzisweni ezinengi, okuyingozi engaba yingozi. emphakathini."
Imibono ngomthetho ophakanyisiweko izokwamukelwa nge-Federal Electronic Rulemaking Portal bekube mhlazi-3 kuNtaka 2023, inomboro yokungena i-EPA-HQ-OPPT-2020-0465.
I-SAINT PAUL, MN (Mhlana ali-19 kuMrhayili 2023) – I-Ergodyne, edumileko ngeempahla zayo zokuzivikela ezisezingeni eliphezulu, namhlanjesi imemezele bona amagilasi we-Skullerz-branded AEGIR Blade kanye ne-OSMIN OTG (Over-the-glasses) akhona esitokisini. Ilunga elitjha khulu lomlandelande lakhiwe ngethekhnoloji ethuthukileko ye-Fog-Off+, eyenza ngcono khulu ukusebenza kokulwa nenkungu nokuklwebheka. Ithekhnoloji ye-Fog-Off+ inikela [...]
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Umnqopho we-EHS On Tap kukunikela ilwazi elikhanyako, elifaneleko nelisebenzako le-podcast ngeenhloko eziqakathekileko kibososayensi be-EHS ngokusebenzisa iinkhulumiswano ezithakazelisako nezizwakalako neengcwethi nabadosiphambili bemibono. Landela iindaba zakamuva begodu ubhalisele!